<!DOCTYPE html>
<html lang="en">
<head>
    <!-- 类似于注册页的头部引入 -->
    ...
</head>
<body>
    <div class="container mt-5">
        <h2>学生登录</h2>
        <form action="/login" method="POST">
            <div class="mb-3">
                <label for="username_login" class="form-label">用户名</label>
                <input type="text" class="form-control" id="username_login" name="username" required>
            </div>
            <div class="mb-3">
                <label for="password_login" class="form-label">密码</label>
                <input type="password" class="form-control" id="password_login" name="password" required>
            </div>
            <button type="submit" class="btn btn-primary">登录</button>
        </form>
    </div>
    <!-- 同样引入jQuery和Bootstrap脚本 -->
    ...
</body>
</html>